How to use PostgreSQL pg_basebackup

pg_basebackup is  a backup utility for ONLINE file system level backups. used to take base backups of a running PostgreSQL database cluster. pg_basebackup waits for the server checkpoint and then start the Postgres data directory copy

These are taken without affecting other clients to the database, and can be used both for point-in-time recovery

Example 

pg_basebackup -U mypostgresuser -p 6666 -v -P -F tar -x -D /mybackup_directory/  -l 11_05_2019

U = username

p = port

v = verbose 

P = Progress report

F = Format of the output 

D = directory for output 

l = label 

For a list of switches , go to the Postgres documentation for pg_basebackup

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